Sampling Guidance for Unknown Contaminants in Drinking Water

This document provides comprehensive guidance that integrates recommendations for biological, chemical, and radiochemical sample collection, preservation, and transport procedures to support multiple analytical approaches for the detection and identification of potential contaminants in drinking water.

Compendium of Environmental Testing Laboratories (Laboratory Compendium)

EPA's Laboratory Compendium is a secure, Web-based tool which provides users with real-time data related to laboratory contact, capability and capacity information. The Laboratory Compendium is intended to assist EPA, state, local and federal emergency response, laboratory, and water utility personnel in responding to contamination threats, terrorist attacks, or natural disasters. Access to this tool must be secured through an application process.

Web-Based Electronic Data Review (WebEDR)

WebEDR is a Web-based application, which performs an electronic review on any uploaded data deliverable. It provides laboratories with the capability to manage, store, and submit ERLN data files, check files for content and completeness prior to submission, and review the status of previous submissions. WebEDR provides data reviewers with a standardized procedure for obtaining, reviewing, and managing the data and its results. WebEDR also provides users the capability to create new Method Measurement Quality Objectives (MQOs) and edit existing Method MQOs to meet project needs.

EPA's Automated Ultrafiltration Device

Ultrafiltration is a sample concentration technique which concentrates bacteria, viruses, and protozoans from large volumes of water (>100 L) quickly and effectively. EPA's field deployable sample concentration (ultrafiltration) device reduces sample collection and concentration time and cost by collecting and concentrating the sample in the field, improves accuracy and consistency, requires minimal setup and training, allows for real-time monitoring, eliminates cross-contamination and increases safety for personnel.

Water Contaminant Information Tool (WCIT)

WCIT is a secure on-line database with comprehensive information about chemical, biological, and radiochemical contaminants of concern for the water sector. This tool compiles drinking water and wastewater-specific data in a one-stop, easy-to use tool. WCIT functionality and content were shaped and validated by water utility professionals, scientists, and public health experts.

Water Security Division

EPA's Water Security Division mission is to provide national leadership in developing and promoting security programs that enhance the sector's ability to prevent, detect, respond to, and recover from all-hazards. This site provides resources for water utilities, state and local governments, public health officials, emergency responders and planners, assistance and training providers, environmental professionals, researchers and engineers, law enforcement, and others.